1. Assistant Professor, Dept. of Civil Engineering, Lebanese American Univ., 211 E 46th St., New York, NY 10017.
2. Associate Professor, Dept. of Civil Engineering, Lebanese American Univ., 211 E 46th St., New York, NY 10017 (corresponding author).
3. Undergraduate Student, Dept. of Civil Engineering, Lebanese American Univ., 211 E 46th St., New York, NY 10017.